Elucidating functions of DP1 and DP2 subunits from the Thermococcus kodakarensis family D DNA polymerase
Elucidating functions of DP1 and DP2 subunits from the Thermococcus kodakarensis family D DNA polymerase
复制标题
阐明柯达热球菌 D 家族 DNA 聚合酶 DP1 和 DP2 亚基的功能
DOI:
10.1007/s00792-018-1070-3
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发表时间:
2018
期刊:
影响因子:
2.9
通讯作者:
Ishino Yoshizumi
中科院分区:
文献类型:
--
作者:
Takashima Natsuki;Ishino Sonoko;Oki Keisuke;Takafuji Mika;Yamagami Takeshi;Matsuo Ryotaro;Mayanagi Kouta;Ishino Yoshizumi
DNA polymerase D (PolD), originally discovered inPyrococcus furiosus,has no sequence homology with any other DNA polymerase family. Genes encoding PolD are found in most of archaea, except for those archaea in the Crenarchaeota phylum. PolD is composed of two proteins: DP1 and DP2. To date, the 3D structure of the PolD heteromeric complex is yet to be determined. In this study, we established a method that prepared highly purified PolD fromThermococcus kodakarensis, and purified DP1 and DP2 proteins formed a stable complex in solution. An intrinsically disordered region was identified in the N-terminal region of DP1, but the static light scattering analysis provided a reasonable molecular weight of DP1. In addition, PolD forms as a complex of DP1 and DP2 in a 1:1 ratio. Electron microscope single particle analysis supported this composition of PolD. Both proteins play an important role in DNA synthesis activity and in 3′–5′ degradation activity. DP1 has extremely low affinity for DNA, while DP2 is mainly responsible for DNA binding. Our work will provide insight and the means to further understand PolD structure and the molecular mechanism of this archaea-specific DNA polymerase.
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DOI:
10.1074/jbc.m115.662841
发表时间:
2015-09-04
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Schermerhorn KM;Gardner AF
通讯作者:
Gardner AF
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
M. Imamura;T. Uemori;I. Kato;Y. Ishino
通讯作者:
Y. Ishino
影响因子:
--
作者:
V. Uversky
通讯作者:
V. Uversky
DOI:
10.1073/pnas.95.24.14250
发表时间:
1998-11-24
影响因子:
11.1
作者:
Cann, IKO;Komori, K;Ishino, Y
通讯作者:
Ishino, Y
影响因子:
3.5
作者:
Matsui, Ikuo;Urushibata, Yuji;Yokoyama, Hideshi
通讯作者:
Yokoyama, Hideshi